Finding the Fourth Proportional to 7,201,329.60, 9,937,638.24 and 3,981,955.52
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Solution
The fourth proportional to 7,201,329.60, 9,937,638.24 and 3,981,955.52 is: 5,494,989.90
Step by Step Solution
- Step 1: Write the proportion equation
7,201,329.60 : 9,937,638.24 = 3,981,955.52 : x - Step 2: Convert to fraction form
7,201,329.60/9,937,638.24 = 3,981,955.52/x - Step 3: Cross multiply
7,201,329.60x = 9,937,638.24 × 3,981,955.52 - Step 4: Simplify right side
7,201,329.60x = 39,571,233,445,531.09 - Step 5: Solve for x
x = 39,571,233,445,531.09/7,201,329.60 - Step 6: Final answer
x = 5,494,989.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.